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<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>500 - 服务器内部错误</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            text-align: center;
            margin-top: 100px;
        }
        h1 {
            font-size: 48px;
            color: #333;
        }
        p {
            font-size: 24px;
            color: #666;
        }
    </style>
</head>
<body>
    <h1>500</h1>
    <p>很抱歉，服务器遇到了问题，请稍后再试。</p>
    <a href="/">返回首页</a>
</body>
</html>